2120445203 has 4 divisors (see below), whose sum is σ = 2144270520. Its totient is φ = 2096619888.

The previous prime is 2120445199. The next prime is 2120445209. The reversal of 2120445203 is 3025440212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2120445203 - 2² = 2120445199 is a prime.

It is a super-2 number, since 2×2120445203² = 8992575717851422418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120445209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11912525 + ... + 11912702.

It is an arithmetic number, because the mean of its divisors is an integer number (536067630).

Almost surely, 2^2120445203 is an apocalyptic number.

2120445203 is a deficient number, since it is larger than the sum of its proper divisors (23825317).

2120445203 is an equidigital number, since it uses as much as digits as its factorization.

2120445203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23825316.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2120445203 is about 46048.2920747339. The cubic root of 2120445203 is about 1284.7215762404.

Adding to 2120445203 its reverse (3025440212), we get a palindrome (5145885415).

The spelling of 2120445203 in words is "two billion, one hundred twenty million, four hundred forty-five thousand, two hundred three".